Comparative network analysis reveals the regulatory mechanism of 1-methylcyclopropene on sugar and acid metabolisms in yellow peach stored at non-chilling temperatures
文献类型： 外文期刊
第一作者： Zhou, Huijuan
作者： Zhou, Huijuan;Su, Mingshen;Zhang, Xianan;Du, Jihong;Li, Xiongwei;Zhang, Minghao;Hu, Yang;Ye, Zhengwen;Wang, Lufan;Zheng, Xiaolin;Huan, Chen
作者机构：
关键词： 1-Methylcyclopropene treatment; Non-chilling temperature storage; Sugar and acid metabolisms; Transcriptome analysis; Yellow peach
期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：5.7； 五年影响因子：6.4 ）
ISSN： 0981-9428
年卷期： 2024 年 216 卷
页码：
收录情况： SCI
摘要： Soluble carbohydrates and organic acids are critical determinants of fruit flavor and consumer preference, both of which are susceptible to postharvest treatments and storage conditions. While the individual effectiveness of 1-methylcyclopropene (1-MCP) and non-chilling temperature storage in delaying fruit ripening and influencing flavor development has been established, their combined effects on peach storage traits remain unexplored. This study investigated the impact of 1-MCP combined with non-chilling temperature storage on the quality and flavor attributes of yellow peach. Our results revealed that 1-MCP treatment reduced ethylene production during storage and delayed ripening and softening by down-regulating ethylene biosynthesis and signaling genes. Transcriptomic analysis indicated that 1-MCP maintained higher levels of soluble carbohydrates by up-regulating sucrose phosphate synthase (PPSPS1/2) and sorbitol dehydrogenase (PPSDH1) while down-regulating hexokinase (PPHXK1). Concurrently, 1-MCP preserved citric and malic acid levels by suppressing aconitate hydratase (PPACO1) and inducing malate dehydrogenase (PPMDH1), thereby delaying flavor degradation. Co-expression network analysis implicated ethylene response factors (PPERFs) as major regulators of sugar and acid metabolisms genes, with PPERF19 potentially functioning as a key transcriptional controller. Overall, this study verified the efficacy of combined 1-MCP and non-chilling storage for yellow peach preservation, identified key 1-MCPmodulated genes involved in sugar and acid metabolisms, and provided insights into regulating peach flavor development via postharvest approaches.
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